<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>注册失败</title>
    <style>
        body, html {
            height: 100%;
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
            background: linear-gradient(135deg, #d6e0ff 0%, #e0c3fc 100%);
        }
        .center-card {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .card {
            background: #fff;
            border-radius: 18px;
            box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.13);
            padding: 36px 30px 24px 30px;
            min-width: 320px;
            max-width: 90vw;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .card h1 {
            color: #e74c3c;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .btn {
            border: none;
            border-radius: 6px;
            padding: 10px 32px;
            background: linear-gradient(90deg, #b39ddb 0%, #a18cd1 100%);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            margin-top: 10px;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: linear-gradient(90deg, #a18cd1 0%, #b39ddb 100%);
            transform: translateY(-2px) scale(1.03);
        }
    </style>
</head>
<body>
    <div class="center-card">
        <div class="card">
            <h1>注册失败，账户已存在</h1>
            <a href="/regist.html" class="btn">重新注册</a>
        </div>
    </div>
</body>
</html>